Valve spring lifter



Jan. 10, 1933.

w. J. ROWAN VALVE SPRING LIFTER Filed Sept. 13, 1930 2 SheetsSheet lATTORN EYS.

Filed Sept. 13, 1930 2 Sheets-Sheet 2 I l/r/A lrra ATTORNEYS,

Patented Jan. 10, 1933 WILLIAM J. ROWAN, F .AKRDN, OHIO' VALVE ramIrrirnn Application filed September 13, 1930. Serial at. 4813355.

This invention relates to valve spring lifting tools for use in removingvalves from internal combustion engines. 7

The general purpose of the invention is to improve upon this type oftool which heretofore have not been entirely satisfactory in use. Morespecifically; the invention hasvfor its object the provision .of a tooladapted to be mounted on the engine block with a depending supportingrod Carrying a lever,

the rod preferably having a universal connection with its mounting sothat it can both rotate and swing thereon, and a lever pivoted on saidrod and havinga spring engaging element on one end and the other endproviding a handle for operating the tool.

A further purpose of the invention is to provide a t'oo l of the typedescribed which may be mounted fonthe engine block and effectively usedwithout dismantling the intake or exhaust manifolds.

A further purpose of the invention is to provide a tool construction ofthe type described including one member adapted to be r seated ontheengine and providing a plurality of supports on which the tool may beremovably mounted to position it for quick removal or replacement of aplurality of valve springs.

A further purpose of the invention is to provide a tool of this typewhich may be latched to hold a valve spring Compressed while a valve isdisconnected and removed or while said valve is reinserted andconnected.

"'35 The foregoing and other purposes or ob jects of the invention areattained in the tool shown in the accompanying drawings and describedbelow. It is to be understood that the invention is not limited to thespeeific form thereof shown and described.

Of the aceompanying drawings,

Figure 1 is a plan view of a portion of an engine block showing a toolembodying the invention in place thereon in position to remove a valvespring;

Figure 2 is a section on line 22 of Figure 1; and t Figure 3 is a view.similar to Figure 2 to showing the manner of actuating the tool todisengage the spring.

Referring to the drawings, the numeral 10 designates an engine blockwhich is a valve 11 controlled by a spring 12 normally supported at thebottom of the valve stem by means such as a flanged collar 13 retainedthereon by a key 13 v The improved tool includes a bar 14 which may beadapted to extend along the engine over the exhaust manifold E and whichis it provided with inwardly projecting ends 14, 14 apertured so as tobe bolted to the engine block by head bolts 15 15 the bar beingsupported by spacer sleeves such as 16 on said bolts preferably of suchheight that the bar may rest on the exhaust manifold E, the bar beingsecured by nuts 17 .7

Bar let is formed With a series of sockets 18, 18 in its upper face sospaced and arranged as to provide seats for positioning the a springlifter in operative relation to the 7 various valve springs of theengine, these sockets preferably being spherical orequivalent shape topermit universal rocking of the tool on the bar.

A supporting rod 19 is provided for suspending the tool from the engineblock, this rod being formed With a downwardly ex tending upper end 19",on which isarranged a knob 20 formed with a bottom surface of sphericalor equivalent shape to seat in sockets 18', this knob having a socket inthe upper surface thereof for receiving the end 19 of rod 19 the knobbeing secured to the rod in any suitable way as by means of a set screw20*. The rod 19 is curved outwardly and downwardly as shown to clear theexhaust manifold E and also the intake manifold I and has pivoted on itslower end as at 22 a lever 21, the rod 19 preferably being so shapedthat pivot 22 is inwardly of the seats 18.

On its inner end lever 21 is provided with a suitable forked formation23 to engage a spring about a valve stem, the outer end of the lever 21being used as the tool operating handle. This lever may be arranged tobe latched to hold the operating end 23 up to maintain a spring 12compressed by means of a latch 24 pivoted at 25 on the handle of lever21 and adapted to engage teeth 26 formed on the lower end of rod 19,latch 21 being urged into engagement with said teeth by a spring 27 andadapted to be depressed by hand against the action of said spring torelease the same. This feature of the invention may be dispensed with ifdesired since it is quite easy with the present tool to hold the springcompressed by pressure of one hand on the tool.

In operation, the tool is so mounted that the fork 23 may be engaged inbetween the lower coils of spring 12 whereupon the handle 21 isdepressed to compress spring 12 clearing the collar 13 and key 13 forremoval, the spring when the latch is used being held compressed by thelatch 24 permitting the operator to use both hands in disconnecting thecollar 13.

After the collar 13 has been removed, the valve 11 is removed and thetool is then moved on its support 14. as may be necessary to swing thelower end of the spring to one side of its seat whereupon compression onthe spring is released and the handle 21 is raised so that the spring 12drops out of its position in the engine.

It will be understood that in reinstalling the spring it is firstarranged as shown in Figure 3 and the handle 21 depressed and the toolmoved to return the spring to its position in Figure 2, the operatorinserting and securing the valve and finally releasing compression onthe spring.

It will be apparent from the foregoing that a simple, but effective toolhas been provided for the purposes described. Obviously modifications ofthis invention may be resorted to without departing from the spiritthereof or the scope of the appended claims.

What is claimed is 1. A tool for use in removing engine valvescomprising a supporting bar adapted to be mounted on top of the engineblock, a rod adapted to be mounted on said bar so as to be suspendedthereon to rotate and to swing, a lever pivoted on the lower end of saidrod, said lever having a valve spring engaging member at one end and theother end providing an operating handle, a latch on said lever, a seriesof teeth arranged vertically of said rod, and yielding means wherebysaid latch is adapted to hold a valve spring compressed.

2. A tool for use in removing engine valves comprising a supporting baradapted to be mounted on top of the engine block, a rod adapted to bemounted on said bar so as to be suspended thereon to rotate and toswing, a lever pivoted on the lower end of said rod, said lever having avalve spring engaging member at one end and the other end providing anoperating handle, a latch on said lever, and a series of teeth arrangedvertically of said rod with which said latch is adapted to engage tohold a valve spring compressed.

3. A tool for use in removing engine Valves comprising a supporting baradapted to be mounted on top of the engine block, a rod adapted to bemounted on said bar so as to be suspended thereon to rotate and toswing, a lever pivoted on the lower end of said rod, said lever having avalve spring engaging member at one end and the other end providing anoperating handle, and latch means associated with said lever and rod.

4. A tool for use in removing engine valves comprising a supporting baradapted to be mounted on top of the engine block, and a rod adapted tobe mounted on said bar so as to be suspended thereon to rotate and toswing, a lever pivoted on the lower end of said rod, said lever having avalve spring engaging member at one end and the other end providing anoperating handle.

5. A tool of the character described including means for fixedlymounting the tool on an engine block in non-obstructing relation to avalve head, a supporting rod depending from said means, and an operatinglever pivoted on said rod, said lever having a work-engaging portion atone end and an operating handle at its other end.

6. A tool of the character described including means for mounting thetool on an engine block, a supporting rod depending from said means andangularly movable relatively thereof, an operating lever pivoted on saidrod and having a. work-engaging portion offset with relation to saidtool mounting means,'and latch means associated with said lever and rodto lock them in fixed relative positions,

7. The combination with a tool for the purpose described comprising afixed support, a rod swiveled for universal movement on said support anda. work-engaging lever pivoted on the rod, of releasable latch meansassociated with the lever and rod to hold the lever in a fixed angularposition relative to said rod.

8. A tool for the purposes set forth comprising a bar adapted to extendalong an engine block over the exhaust manifold, means for securing saidbar to said engine block so as to rest on said manifold, said bar havinga series of seats thereon, a rod having a knob thereon adapted to beremovably seated in said seats to rock or rotate thereon, said rod beingshaped to extend outwardly and downwardly about said exhaust manifoldand the intake manifold of said engine, a valve spring lifting levershiftably mounted on said rod, said rod being adapted to suspend saidvalve spring lifting lever from said bar in operative association withthe valve springs of said engine.

9. A valve spring lifter comprising a support adapted to be mounted onan engine block and having a plurality of seats thereon, a valve springlifting tool, and means for suspending said tool from said support 011any of said seats, said seats being arranged operatively to associatesaid tool with the various valve springs of the engine.

10. A valve spring lifter comprising a sup port having a plurality ofseats thereon, a valve spring lifting tool, and means for suspendingsaid tool from said support on any of said seats, said seats beingarranged operatively to associate said tool with the various Valvesprings of the engine.

11. A valve spring lifter for use in removing valves Without removingthe manifold of an engine comprising supporting means fixedly secured tothe engine block, and a rod sWiveled on said supporting means forsuspending the tool therefrom, said rod being of curvilinear form so asto clear said manifold.

WILLIAM J. ROWAN.

